Repairs vs Improvements: NZ Rental Property Tax Explained
Repairs or improvements? The one-word difference that changes your rental tax bill
The short answer: a repair restores the property to the state it was in before — deductible in the year you pay for it. An improvement takes the property beyond its original state — capital, and for a residential rental building the depreciation rate has been 0% since the 2011–12 income year, so the deduction is nil. Chattels such as carpet and single-split heat pumps depreciate at their own rates. IRD's current test (IS 26/01, March 2026) asks two questions — what is the asset, and did the work replace it or change its character.
What does IRD say the difference is?
IRD's rental page (read 3 September 2026): "Repairs and maintenance restore a property to its previous state" — examples "replacing a broken window", "repainting the house". Against that: "Capital improvements add to the property and enhance it beyond its original state at the time of purchase. You cannot claim for capital expenditure" — examples "adding an extra room", "installing heat pumps where none were present".
It bites hard for houses because of one line in IRD's guide IR264: "From the 2011-12 income year depreciation on residential buildings is 0%."
How does IRD's two-step test work?
Interpretation Statement IS 26/01 (2 March 2026, replacing IS 12/03) sets out the courts' approach:
- Identify the asset. For a house, "whether the work is carried out on the building itself or on a separate item or chattel." A carpet is a chattel; a roof is building.
- Look at the nature and extent of the work. "Reconstruction, replacement or renewal of the asset, either entirely or substantially" is capital. Work that "goes beyond fixing normal wear and tear (ie, repairs) and changes the asset's character" is capital. Two traps: work "part of one overall capital project" is capital with the project, and work "essential to make a recently acquired capital asset suitable for its intended long-term use" is purchase cost, not repair.
Common jobs — which side of the line?
| Job | Usually a repair (deductible now) | Usually capital | Notes |
|---|---|---|---|
| Roof | Replacing broken tiles or a section of iron like-for-like; fixing leaks | Re-roofing in a better material, or as part of a house renovation | Roof = building → 0% |
| Kitchen | Replacing a broken tap, oven element or benchtop like-for-like | New kitchen, new layout, more cabinetry, relocated plumbing | Built-in kitchen = building (0%); freestanding appliances = chattel |
| Carpet | Cleaning, re-stretching, patching | Replacing the whole carpet | Chattel: 25% DV; under $1,000 for a room = deductible in full as a low-value asset |
| Fence | Replacing rotten palings and posts | New fence where there was none, or a low fence replaced by a tall one | Depends on asset and extent |
| Heat pump | Repairing a failed unit | Installing one where none existed | Single-split = chattel at 20% DV; ducted or multi-unit = building at 0% (QB 20/01) |
Rates: IR264 (March 2026) Table 3 and QB 20/01; low-value asset threshold $1,000 from 17 March 2021.
What about Healthy Homes work?
All private rentals had to meet the standards by 1 July 2025. QB 20/01 treats each item on its own: insulation, ducted heat pumps, flued fires, extractor fans and moisture barriers are generally "part of the building" (0%); electric panel heaters (67%), single-split heat pumps (20%) and through-window fans (40%) are depreciable chattels.
How should I document it?
- Invoice wording: "replace 12 broken roof tiles" is a repair; "roof" is an argument.
- One invoice per job. A single "renovation" invoice drags everything into the capital project.
- Before-and-after photos plus the tenant's maintenance request prove the "previous state" being restored.
- Record each chattel's purchase date and price, and the property's — work straight after purchase to make it lettable is capital.
We split renovation invoices line by line in our rental property financial statements, $350 per property +GST, personally owned or via a company or trust.
Why is getting it wrong expensive both ways?
Claim an improvement as a repair and IRD can reassess it, add use-of-money interest at 8.97% (from 16 January 2026) and a 20% shortfall penalty for not taking reasonable care. Treat a repair as capital and you forfeit a deduction you were entitled to, at 0%, for good. It matters more now: from 1 April 2025 rental interest is deductible in full again, and rental losses are ring-fenced against future rental income, so every deduction changes how fast a loss is used. Build a renovation year's cash-flow forecast on the right column.
FAQ
Can I claim a new roof on my rental property? Replacing damaged sections like-for-like is generally a repair and deductible. A complete re-roof, especially in a better material or as part of a wider renovation, is likely capital, and at 0% there is no deduction.
Is replacing carpet a repair or capital in NZ? Replacing the whole carpet is buying a new chattel, depreciated at 25% diminishing value rather than deducted at once. If a room's carpet costs under $1,000 it is a low-value asset, deductible in full that year.
Are heat pumps tax deductible for a rental? Installing one where there was none is capital. A single-split unit is a chattel depreciated at 20% diminishing value; a ducted system is part of the building at 0%. Repairing an existing unit is deductible maintenance.
I renovated before the first tenant moved in — can I claim it? Generally no. Work needed to make a newly bought property suitable for renting is part of its acquisition cost, not a repair, even if the same job on a long-tenanted property would be deductible.
Talk to us
Have a renovation invoice and not sure which column it goes in? Bring it to a free 15-minute consultation: call 021 202 4028, email info@optimalaccountants.co.nz, or use our contact page. Ted Liang, Chartered Accountant (CA ANZ), Optimal Accountants Limited, Level 3, Candida Building, 4/61 Constellation Drive, Rosedale, Auckland (North Shore). English and Mandarin. See tax and GST returns and all services.